Grand Cayman, Cayman Islands
    Spotter Bay - Anchors Point (Grand Cayman)

    Black Rock Reef

    Best months: Dec–Mar

    Protected Area

    Spotter Bay - Anchors Point (Grand Cayman)

    Why dive here

    With 327+ marine species recorded in the area - including barracuda, bull sharks, oceanic whitetip sharks, orcas and sea turtles - Black Rock Reef offers some of Grand Cayman's richest reef diving. Water ranges 27-31°C, warmest August, September, October.

    Best timeDec–Mar
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Bull Sharks, Oceanic Whitetip Sharks, Orcas and Sea Turtles · 327+ species recorded
    Water27-31°C · warmest August, September, October
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Black Rock Reef is a Grand Cayman staple for a reason. We love how the reef forms distinct fingers, separated by sandy channels that just beg to be explored. Drop down and you're immediately greeted by the sheer scale of the hardpan, covered in grooved brain corals and those impressive Lamarck's sheet corals. It's a busy place; we’ve often found schools of yellowtail snapper swirling around the bigger coral heads. Keep an eye out for sneaky characters like the sharpnose pufferfish tucking themselves into crevices, or a well-camouflaged Pacific spotted scorpionfish. Our favourite part has to be the overhangs, perfect for spotting lobsters and crabs. For photographers, the way the light filters through those sandy channels can be really striking in the morning. It’s a site that suits everyone, from newer divers to those of us who just appreciate a classic, consistently rewarding Caribbean dive.

    Today06:1818:0611h 48m daylightGolden hour 17:37

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    Conditions

    Ocean conditions, forecast and tides for Black Rock Reef

    Black Rock Reef Ocean Conditions

    Monthly averages for Black Rock Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (19.38, -81.32) (5km away)

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    October Averages

    Sea Temperature

    30°C

    87°F · Range: 29.1–31.8°C

    Current Speed

    4.47 cm/s

    Direction: NW (296.6°)

    Chlorophyll-a

    0.045 mg/m³

    Very clear (oligotrophic)

    Salinity

    36.14 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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